Add req.txt for installing ansible-lint
Add req.txt for installing ansible-lint

Change-Id: I9d1e760ccf3f2a3bde23d2aac0fda0dca0b3c0c7
Signed-off-by: Daniel Farrell <65eaad88897e615d9128b5e890b98414aac720cc@redhat.com>

googoolet/publlc